Stability AI Platform

What is Stability AI Platform?

The Stability AI Platform is the developer API behind Stability's image and audio models. A single REST API (v2beta) with bearer-token authentication gives access to Stable Image Ultra, the Stable Diffusion 3.5 family, Stable Image Core and SDXL for generation, plus upscaling, editing and control services such as inpaint, outpaint, erase, remove background, search and replace, structure and sketch. Stable Audio covers text-to-audio, audio-to-audio and audio inpainting, and the company says these models are trained on licensed material and cleared for commercial use under its terms. Usage is billed in credits, where 1 credit equals $0.01, and failed requests are not charged. New accounts get 25 free credits with no card. For example, Stable Image Ultra costs 8 credits per image and Stable Audio 3.0 costs 8 credits. Enterprise customers can ask about custom rate limits and volume pricing.

Use cases

• Generate images from text in an app
• Upscale low-resolution images
• Edit images with inpaint and outpaint
• Remove backgrounds programmatically
• Generate music and sound effects
• Transform existing audio with prompts
• Inpaint part of an audio clip

Who it's for

• Application developers
• Game developers
• Media teams
• Creative technologists

Why use Stability AI Platform

• Image and audio generation share one API key and one credit balance.
• Credits are priced at $0.01 each, so you can estimate the cost of each call from the published table.
• You can test the API with free credits and without entering a card.
• Failed requests are not billed, which keeps experimentation inexpensive.
• Audio editing modes such as audio-to-audio and inpainting go beyond plain text-to-audio generation.

Stability AI Platform features

• Stable Image Ultra, Stable Diffusion 3.5 and Stable Image Core generation
• Fast, Conservative and Creative upscalers
• Edit services: erase, inpaint, outpaint, search and replace, recolor
• Remove background and replace background with relighting
• Control services such as structure and sketch
• Stable Audio text-to-audio, audio-to-audio and inpainting
• Examples in curl, Python and JavaScript
• OpenAPI specification download
• Docs MCP server for AI tools
• Failed requests are not charged

Stability AI Platform integrations

• Docs MCP server

How to get started with Stability AI Platform

1. Sign up on platform.stability.ai, open the console and create an API key.
2. Send the key in the Authorization header as a bearer token.
3. Choose a service such as Stable Image Ultra or Stable Audio and POST a multipart request with your prompt and parameters.
4. Save the returned image or audio, or request base64 JSON if you prefer.
5. Check your credit balance on the account page and buy more credits when needed.

Stability AI Platform limitations

• The API allows 150 requests per 10 seconds; going over triggers a 60-second timeout
• New accounts get only 25 free credits
• Pricing is subject to change as models and infrastructure change
• Requires programming to integrate

Stability AI Platform pricing

Stability AI Platform has no free plan, but it offers a free trial.

Stability AI Platform plans

• Free credits

  25 credits

  for new accounts, no card needed

  • Try the API before paying
  • Stable Image and Stable Audio access

• Credits

  $0.01/credit

  pay as you go

  • Stable Image Ultra: 8 credits
  • Stable Diffusion 3.5 Large: 6.5 credits
  • Stable Audio 3.0: 8 credits
  • Failed requests are not charged

• Enterprise

  Custom

  • Dedicated support
  • Custom rate limits
  • Volume pricing
  • Private deployment options

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

Stability AI Platform alternatives

The main Stability AI Platform alternatives listed on Debuly are Recraft, Replicate, fal.ai, Prodia, WaveSpeedAI and Runware. The table compares pricing and platforms; order is A–Z.

1. 

   fal.ai

   Pay-per-output API for image, video, audio and 3D generation models, plus serverless GPUs and an AI media agent.

   Developer platformsImage generationVideoAudio and voice
   PaidVisit fal.ai (official site)
2. 

   Prodia

   Inference API and browser Model Explorer for running image, video and editing models such as FLUX, Veo, Sora and Seedream.

   Developer platformsImage generationVideo
   Visit Prodia (official site)
3. 

   Recraft

   AI image and design platform that generates raster and vector images, mockups and brand styles, with editing tools and an API.

   Image generationDesignMarketing and SEO
   FreemiumVisit Recraft (official site)
4. 

   Replicate

   Cloud API for running, fine-tuning and deploying open-source and proprietary AI models, billed by compute time or by output.

   Developer platformsImage generationVideo
   PaidVisit Replicate (official site)
5. 

   Runware

   One API for running image, video, audio, language and 3D AI models, with pay-as-you-go pricing and serverless GPU compute.

   Developer platformsImage generationVideo
   PaidVisit Runware (official site)
6. 

   WaveSpeedAI

   Pay-per-use API and web platform for running 1,000+ image, video, audio and language models without managing GPUs.

   Developer platformsVideoImage generation
   Free trialVisit WaveSpeedAI (official site)

Stability AI Platform FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

• Logo: from platform.stability.ai · fetched 24 Oct 2026 · Vendor trademark, used only to identify the product; removed on request
• Cover: none collected yet, so a generated tile is shown.

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